<table class="texreg" style="margin: 10px auto;border-collapse: collapse;border-spacing: 0px;caption-side: bottom;color: #000000;border-top: 2px solid #000000;">
<caption>Statistical models</caption>
<thead>
<tr>
<th style="padding-left: 5px;padding-right: 5px;">&nbsp;</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 1</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 2</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 3</th>
<th style="padding-left: 5px;padding-right: 5px;">Model 4</th>
</tr>
</thead>
<tbody>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">(Intercept)</td>
<td style="padding-left: 5px;padding-right: 5px;">2.23<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.04<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.08<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">1.98<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.31)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.34)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">gen</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.18</td>
<td style="padding-left: 5px;padding-right: 5px;">0.04</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.13</td>
<td style="padding-left: 5px;padding-right: 5px;">0.06</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">age</td>
<td style="padding-left: 5px;padding-right: 5px;">0.52<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.27</td>
<td style="padding-left: 5px;padding-right: 5px;">0.53<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.30</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.27)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.27)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.35)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">edu</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.17</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.11</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.13</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.09</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.26)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.33)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">com</td>
<td style="padding-left: 5px;padding-right: 5px;">1.29<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">1.30<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">1.55<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">1.55<sup>&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.51)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.67)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.51)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.67)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot</td>
<td style="padding-left: 5px;padding-right: 5px;">0.45</td>
<td style="padding-left: 5px;padding-right: 5px;">0.49</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.67</td>
<td style="padding-left: 5px;padding-right: 5px;">0.01</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.44)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.56)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.62)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.58)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">comena</td>
<td style="padding-left: 5px;padding-right: 5px;">0.17</td>
<td style="padding-left: 5px;padding-right: 5px;">0.06</td>
<td style="padding-left: 5px;padding-right: 5px;">0.21</td>
<td style="padding-left: 5px;padding-right: 5px;">-0.03</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.43)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.53)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.43)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.53)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelDn</td>
<td style="padding-left: 5px;padding-right: 5px;">2.09<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.44<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.89<sup>&#42;&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">2.87<sup>&#42;&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.56)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.54)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.40)</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.51)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.10</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.17<sup>&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.13)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.10)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelDn:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">0.42<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.20)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelMm</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.74</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.03<sup>&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.52)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.45)</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">RelDn:RelMm</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">1.96<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.85)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot:RelSv</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">0.62<sup>&#42;&#42;</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(0.25)</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">cot:RelMm</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">2.56<sup>&#42;&#42;</sup></td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">&nbsp;</td>
<td style="padding-left: 5px;padding-right: 5px;">(1.07)</td>
</tr>
<tr style="border-top: 1px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.33</td>
<td style="padding-left: 5px;padding-right: 5px;">0.34</td>
<td style="padding-left: 5px;padding-right: 5px;">0.34</td>
<td style="padding-left: 5px;padding-right: 5px;">0.34</td>
</tr>
<tr>
<td style="padding-left: 5px;padding-right: 5px;">Adj. R<sup>2</sup></td>
<td style="padding-left: 5px;padding-right: 5px;">0.32</td>
<td style="padding-left: 5px;padding-right: 5px;">0.31</td>
<td style="padding-left: 5px;padding-right: 5px;">0.32</td>
<td style="padding-left: 5px;padding-right: 5px;">0.31</td>
</tr>
<tr style="border-bottom: 2px solid #000000;">
<td style="padding-left: 5px;padding-right: 5px;">Num. obs.</td>
<td style="padding-left: 5px;padding-right: 5px;">444</td>
<td style="padding-left: 5px;padding-right: 5px;">271</td>
<td style="padding-left: 5px;padding-right: 5px;">444</td>
<td style="padding-left: 5px;padding-right: 5px;">271</td>
</tr>
</tbody>
<tfoot>
<tr>
<td style="font-size: 0.8em;" colspan="5"><sup>&#42;&#42;&#42;</sup>p &lt; 0.01; <sup>&#42;&#42;</sup>p &lt; 0.05; <sup>&#42;</sup>p &lt; 0.1</td>
</tr>
</tfoot>
</table>

